This particular O.P. has a pattern that goes roughly as follows:
- ask a question – often about a preposition or a phrase containing a word with multiple meanings, and feigning a little confusion because a usage doesn't map to a dictionary with 100% precision
- reply to answers with follow-on questions in comments, almost as if those questions were at the ready the entire time.
It's very trollish behavior, and becomes predictable when observed over time. Here are a few examples.
Question (#33042): Could X be an error?
Follow-on (in comments): So, the example usage is wrong?
Question (#33186): Is phrase X error?
Follow-on (in comments): So, X is a non-standard version of Y?
Question (#32921): Does X make Y redundant?
Follow-on (in comments): So, adding or deleting Y makes no difference?
Question (#32862): Is replacing X with Y okay English?
Follow-on (in comments): But the pattern "be X-ing whether ...." can be found in substantial numbers
Question (#32761): Does X mean Y?
Follow-on (in comments): Would Z be better?
Many of these questions do point out interesting quirks of English, which is why this O.P. has been allowed to keep participating. But those who choose to answer these should know they are probably not investing their time to help a bona fide English learner – not unless someone else happens by, and happens to gain some knowledge from the question and its answer(s).
Also, if you elect to answer one of these "meaty" questions, don't be surprised if you get a follow-on notification soon thereafter. Feel free to flag one of those predictable follow-on questions in the comments instead of answering it. Lengthy discourse beneath an answer is not productive and such dialog is subject to deletion.